1952 - The U.S. Standardization Board clears the way for Stan Musial to get a salary increase to $85,000. Prior to this relaxation of the rules, there was a wage freeze in effect due to the Korean War. Under the new rules, a team is free to raise individual salaries, as long as they do not exceed a complicated formula, based on total team salaries for any one year, from 1946-1950, plus 10 percent.

1970 - Gold Glove outfielder Curt Flood files a lawsuit challenging the reserve clause, which binds major league players to teams perpetually. Flood had been traded by the St. Louis Cardinals to the Philadelphia Phillies in September 1969, but refused to report to the Phillies. Flood contends that the reserve clause violates antitrust laws. Flood will lose the suit but the judge will suggest changes to the reserve system.

The owners establish the minimum age of 14 for bat boys. The change from not having any age requirement was prompted by a near collision at home plate during Game Five of the World Series involving 4-year old bat boy Darren Baker, the son of GiantsmanagerDusty Baker.

Gary Carter becomes the first player, to wear a Montréal Expos hat on his plaque when he is inducted into the Hall of Fame in July at Cooperstown. Although the former Montreal catcher had expressed his desire to go in with a Mets logo, the team he is employed by and was part of its 1986 World Series championship, the Hall of Fame makes the final decision.

Trying to restore a competitive edge to the MLB All-Star Game, the owners unanimously approved the winning league of the Mid-Summer classic will have home-field advantage during the World Series. Approval is needed by the players to change the current rotation between the two leagues which was put in place since its inception of the World Series in 1993.